146287240 has 32 divisors (see below), whose sum is σ = 359069760. Its totient is φ = 53195200.

The previous prime is 146287237. The next prime is 146287259. The reversal of 146287240 is 42782641.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 146287196 and 146287205.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 165796 + ... + 166675.

It is an arithmetic number, because the mean of its divisors is an integer number (11220930).

Almost surely, 2^146287240 is an apocalyptic number.

146287240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

146287240 is an abundant number, since it is smaller than the sum of its proper divisors (212782520).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

146287240 is a wasteful number, since it uses less digits than its factorization.

146287240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332493 (or 332489 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 34.

The square root of 146287240 is about 12094.9262089522. The cubic root of 146287240 is about 526.9088366254.

The spelling of 146287240 in words is "one hundred forty-six million, two hundred eighty-seven thousand, two hundred forty".